FYI, the symbols are always stripped out from the ARM EFI binaries. The symbol you see are the DWARF debug symbols not the PDB. It means with the DEBUG and RELEASE the ELF binaries used to generate the EFI binaries contain the debug information. But there is no debug information on the target.
> -----Original Message----- > From: Scott Duplichan [mailto:sc...@notabs.org] > Sent: 11 November 2014 16:57 > To: edk2-devel@lists.sourceforge.net; 'Jordan Justen' > Subject: Re: [edk2] patch: enable NOOPT build target for each EDK2 > package > > Laszlo Ersek [mailto:ler...@redhat.com] wrote: > > ]On 11/11/14 03:23, Scott Duplichan wrote: > ]> Jordan Justen [mailto:jordan.l.jus...@intel.com] wrote: > ]> > ]> ]To contradict my request for separate patches for each package, I > do > ]> ]think this is a case where a single patch makes more sense even > though > ]> ]it touches multiple packages. > ]> ] > ]> ]I don't really find the NOOPT target very interesting. I think we > ]> ]don't actually gain much with NOOPT since it can't often be used on > ]> ]firmware images. > ]> > ]> The NOOPT build is almost a necessity for source level debugging > ]> a Microsoft build. With it, local variables are visible and accurate > ]> for every single step. With an optimized build, some locals are > ]> eliminated entirely and others are kept in registers, something the > ]> Microsoft debug information doesn't track. > ]> > ]> During the transition from legacy BIOS to UEFI, the projects I > worked > ]> on were limited to 1MB flash, the max size for LPC chips used on > ]> reference boards at the time. We had to make do with enabling debug > ]> info for the optimized build during that period. Servers are less > ]> likely to have a flash space limitation that prevents NOOPT build > ]> use. The last server project I worked on used a 16MB flash chip. > ]> Don't today's desktop boards have 4-8 MB of flash? That should > ]> hold a NOOPT build. > ] > ]What's wrong with simply using DEBUG then? > > The problem with the using EDK2 defined DEBUG build, at least with > Microsoft tools, is that DEBUG build is fully optimized. That means > a debugger can't reliably display local variables. The EDK2 DEBUG > build (Microsoft case), is just a release build with debug symbols > added. > > I see that GCCxx_ARM is setup a little differently. In tools_def > GCCxx_ARM defines DEBUG and RELEASE builds. The DEBUG build > disables optimization. > > MSFT tools GCC-ARM > OPTIMIZED SYMBOLS OPTIMIZED SYMBOLS > DEBUG yes yes no yes > RELEASE yes no yes yes > NOOPT no yes n/a n/a > > Thanks, > Scott > > ]Thanks > ]Laszlo > > ----------------------------------------------------------------------- > ------- > Comprehensive Server Monitoring with Site24x7. > Monitor 10 servers for $9/Month. > Get alerted through email, SMS, voice calls or mobile push > notifications. > Take corrective actions from your mobile device. > http://pubads.g.doubleclick.net/gampad/clk?id=154624111&iu=/4140/ostg.c > lktrk > _______________________________________________ > edk2-devel mailing list > edk2-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/edk2-devel > > > ----------------------------------------------------------------------- > ------- > Comprehensive Server Monitoring with Site24x7. > Monitor 10 servers for $9/Month. > Get alerted through email, SMS, voice calls or mobile push > notifications. > Take corrective actions from your mobile device. > http://pubads.g.doubleclick.net/gampad/clk?id=154624111&iu=/4140/ostg.c > lktrk > _______________________________________________ > edk2-devel mailing list > edk2-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/edk2-devel ------------------------------------------------------------------------------ Comprehensive Server Monitoring with Site24x7. Monitor 10 servers for $9/Month. Get alerted through email, SMS, voice calls or mobile push notifications. Take corrective actions from your mobile device. http://pubads.g.doubleclick.net/gampad/clk?id=154624111&iu=/4140/ostg.clktrk _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel
